论文信息 - Quantum dot laser with 75 nm broad spectrum of emission.

Quantum dot laser with 75 nm broad spectrum of emission.

We report on a quantum dot laser having an emission spectrum as broad as 74.9 nm at 25 degrees C in the 1.2-1.28 wavelength interval with a total pulsed output power of 750 mW in single lateral mode regime and the average spectral power density of >10 mW/nm. A significant overlap and approximate equalization of the ground-state and the excited-state emission bands in the laser's spectrum is achieved by means of intentional inhomogeneous broadening of the quantum dot energy levels.

[1] A. P. Vasil’ev,et al. High-power single-mode 1.3-μm lasers based on InAs/AlGaAs/GaAs quantum dot heterostructures , 2004 .

[2] D. A. Livshits,et al. Output power and its limitation in ridge-waveguide 1.3 µm wavelength quantum-dot lasers , 2003 .

[3] J. Fastenau,et al. Room-temperature broadband emission of an InGaAs/GaAs quantum dots laser. , 2007, Optics letters.

[4] Andrea Fiore,et al. Simultaneous two-state lasing in quantum-dot lasers , 2003 .

[5] A. R. Kovsh,et al. Progress in Quantum Dot Lasers: 1100 nm, 1300 nm, and High Power Applications , 2000 .